1. PART A: Which statement identifies the central idea of the text? A. Children are less likely to be harmed by air pollution when they live in a city. B. Air pollution can cause people to develop mental and physical health problems that could become more serious over time. C. Air pollution is not a concern for children because their bodies and minds are young and strong. D. While air pollution has a serious impact on children and adults’ health, there is much people can do to protect themselves against the invisible threat.

I'm pretty sure it's B becuase my teacher said it wasn't D... so yeah and I definitley do not think its A or C

Explanation:

B

the symbol of the grandfather's heritage in this excerpt from "the medicine bag,” is the beaded bolo tie.

a bolo tie is a cord fastened around the neck with an ornamental clasp which is worn as a necktie. they have been used by native american tribes such as hopi, navajo, zuni, and puebloans since the mid-20th century.

therefore, the fact that the grandfather is wearing a bolo tie refers to his heritage as native american.